Mailing List Weird Display [5.1.0-RC1]

Imported from: http://groups.google.com/group/in-portal-bugs/browse_thread/thread/92aa50d55fe066b1#

We have line 2 and 3 : queue: 1 - sent : 1 - total : 1 and line 1 : "not processed" and queue: 0 !

I think there's an error with "queue" field: it display 1 when there's no message in queue, right?

All these messages are single messages sent manually to users, I also didn't saw where to manually force them to be sent; if cron isn't activated, how does it works?